CN116804900A - Touch display device and control method thereof - Google Patents

Touch display device and control method thereof Download PDF

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Publication number
CN116804900A
CN116804900A CN202210271858.6A CN202210271858A CN116804900A CN 116804900 A CN116804900 A CN 116804900A CN 202210271858 A CN202210271858 A CN 202210271858A CN 116804900 A CN116804900 A CN 116804900A
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CN
China
Prior art keywords
touch
display
layer
display device
cover plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210271858.6A
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Chinese (zh)
Inventor
孙阔
王博
盖人荣
许睿
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BOE Technology Group Co Ltd
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BOE Technology Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BOE Technology Group Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN202210271858.6A priority Critical patent/CN116804900A/en
Priority to PCT/CN2023/078648 priority patent/WO2023174048A1/en
Publication of CN116804900A publication Critical patent/CN116804900A/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0446—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Position Input By Displaying (AREA)

Abstract

The invention relates to the technical field of display, and discloses a touch display device and a control method thereof; the touch display device comprises a flexible display panel, a cover plate and a first touch layer group; the flexible display panel comprises a first display part and a second display part, and the first display part and the second display part are arranged opposite; the cover plate is arranged on one side of the second display part, which is away from the first display part; the first touch control layer is arranged on one side of the cover plate, which is close to the second display part, and a gap is arranged between the first touch control layer and the second display part. In the winding state, the back surface of the touch display device can sense external touch actions through the first touch layer group, so that a touch function is realized; a gap is arranged between the first touch control layer group and the second display part, and the first touch control layer group and the cover plate cannot influence the expansion of the second display part; the cover plate can also play a role in protecting the second display part, and abrasion to the second display part is avoided.

Description

Touch display device and control method thereof
Technical Field
The disclosure relates to the technical field of display, and in particular relates to a touch display device and a control method of the touch display device.
Background
With the advancement of technology and improvement of the social living standard, the requirements of consumers on display products are increasingly improved, and at present, a new generation of slide roll display device is developed, and the slide roll display device can change the area of a display picture.
However, when the slide-roll display device is in a rolled state, the display area on the back cannot be touch-controlled.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the present disclosure and thus may include information that does not constitute prior art known to those of ordinary skill in the art.
Disclosure of Invention
The present disclosure is directed to overcoming the drawbacks of the prior art and providing a touch display device and a control method thereof.
According to an aspect of the present disclosure, there is provided a touch display device including:
the flexible display panel comprises a first display part and a second display part, wherein the first display part and the second display part are arranged opposite;
the cover plate is arranged on one side of the second display part, which is away from the first display part;
the first touch control layer group is arranged on one side, close to the second display part, of the cover plate, and a gap is formed between the first touch control layer group and the second display part.
In an exemplary embodiment of the present disclosure, the flexible display panel further has a third display portion connected between the first display portion and the second display portion, the third display portion is curved, the first display portion is a fixed portion, and the second display portion and the third display portion are a slide-roll portion.
In an exemplary embodiment of the disclosure, the first touch layer group completely covers a side surface of the cover plate near the second display portion, and the cover plate includes:
a flat plate portion disposed opposite to the second display portion;
and the curved surface part is connected with the flat plate part and is arranged opposite to part of the third display part.
In an exemplary embodiment of the disclosure, a set distance is provided between a portion of the first touch layer group closest to the flexible display panel and a surface of the second display portion closest to the cover plate in a third direction, and the third direction is perpendicular to a display surface of the first display portion.
In one exemplary embodiment of the present disclosure, the flexible display panel includes:
a display back plate;
the second touch control layer group is arranged on one side of the display backboard and is positioned on the first display part, the second display part and the third display part.
In an exemplary embodiment of the disclosure, the second touch layer group includes a first portion and a second portion, the first portion is located in the first display portion and at least a portion of the third display portion, and the second portion is located at least in the second display portion.
In an exemplary embodiment of the present disclosure, an orthographic projection of the first touch layer group on the flexible display panel coincides with the second portion, or an edge of the orthographic projection of the first touch layer group on the flexible display panel near the first portion coincides with an edge of the first portion near the second portion.
In an exemplary embodiment of the present disclosure, the first portion and the second portion are spaced apart.
In an exemplary embodiment of the present disclosure, the second touch layer group further includes:
the second touch control driving lead is connected to the first part;
the second touch sensing lead is connected to the first part;
the third touch control driving lead is connected to the second part;
and the third touch sensing lead is connected with the second part.
In an exemplary embodiment of the present disclosure, the first touch layer group includes:
the first touch conductor layer is arranged on one side of the cover plate, which is close to the flexible display panel, and is made of transparent conductive materials;
the first touch insulating layer is arranged on one side of the first touch conductor layer, which is far away from the cover plate;
the second touch conductor layer is arranged on one side of the first touch insulation layer, which is far away from the cover plate, and is made of transparent conductive materials;
The second touch insulating layer is arranged on one side, far away from the cover plate, of the second touch conductor layer.
In an exemplary embodiment of the present disclosure, the second touch layer group includes:
the third touch metal layer is arranged on one side of the display backboard;
the third touch insulating layer is arranged on one side, far away from the display backboard, of the third touch metal layer;
the fourth touch metal layer is arranged on one side, far away from the display backboard, of the third touch insulation layer;
and the fourth touch insulating layer is arranged on one side of the fourth touch metal layer, which is far away from the display backboard.
According to another aspect of the present disclosure, there is provided a control method of a touch display device for controlling any one of the above touch display devices, the control method including:
receiving a roll state of the touch display device;
and if the sliding roll state of the touch display device is rolling, controlling the first touch layer group to work.
In an exemplary embodiment of the present disclosure, the control method further includes:
and controlling the second part to stop working and controlling the first part to work while controlling the first touch control layer group to work.
In an exemplary embodiment of the disclosure, the controlling the second portion to stop includes:
shielding the touch sensing signal of the second part, or controlling to close the touch function of the second part.
In an exemplary embodiment of the disclosure, if the roll state of the touch display device is in an extended state, the second touch layer group is controlled to work, and the first touch layer group is controlled to stop working.
The touch display device is characterized in that a first touch layer group is arranged on one side, close to the second display portion, of the cover plate, and a gap is formed between the first touch layer group and the second display portion. On the one hand, the first touch control layer group is attached to the cover plate, and in a rolling state, the back surface of the touch control display device can sense external touch control actions through the first touch control layer group, so that a touch control function is realized; on the other hand, a gap is arranged between the first touch control layer group and the second display part, and the first touch control layer group and the cover plate cannot influence the expansion of the second display part; in yet another aspect, the cover plate can also provide protection for the second display portion from wear.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.
Fig. 1 is a schematic structural diagram of an exemplary embodiment of a display device according to the present disclosure in a rolled state.
Fig. 2 is a schematic view of the display device in fig. 1 in an unfolded state.
Fig. 3 is a schematic structural view of the flexible display panel in fig. 1.
Fig. 4 is a schematic cross-sectional structure of the first touch layer set in fig. 1.
Fig. 5 is a schematic structural diagram of the first touch layer set in fig. 1.
Fig. 6 is a schematic structural diagram of an exemplary embodiment of the second touch layer in fig. 1.
Fig. 7 is a schematic structural diagram of another exemplary embodiment of the second touch layer set in fig. 1.
Fig. 8 is a schematic block flow diagram of an exemplary embodiment of a control method of a display device of the present disclosure.
Reference numerals illustrate:
1. a flexible display panel; 11. a first display unit; 12. a second display unit; 13. a third display unit;
14. A display back plate; 141. a substrate base; 142. a light shielding layer; 143. a buffer layer; 144. an active layer; 145. a gate insulating layer; 146. a gate; 147. an interlayer dielectric layer; 1481. a source electrode; 1482. a drain electrode; 149. a planarization layer; 150. a first electrode; 151. a pixel definition layer; 152. a light emitting layer group; 153. a second electrode; 154. packaging layer group;
16. the second touch control layer group; 16a, a third touch metal layer; 16b, a third touch insulating layer; 16c, a fourth touch metal layer; 16d, a fourth touch insulating layer;
161. a first portion; 162. a second portion;
163. a third touch unit; 1631. a third touch electrode; 1632. a third connecting portion;
164. a fourth touch unit; 1641. a fourth touch electrode; 1642. a fourth connecting portion;
165. a second touch drive lead; 166. a second touch sensing lead; 167. a third touch drive lead; 168. a third touch sensing lead; 169. a spacer;
17. a polarizer; 18. an adhesive layer; 19. a cover layer; 20. a connection structure;
2. a cover plate; 21. a flat plate portion; 22. a curved surface portion;
3. the first touch control layer group; 3a, a first touch conductor layer; 3b, a first touch insulating layer; 3c, a second touch conductor layer; 3d, a second touch insulating layer;
31. A first touch unit; 311. a first touch electrode; 312. a first connection portion;
32. a second touch unit; 321. a second touch electrode; 322. a second connecting portion;
33. a first touch sensing lead; 34. a first touch drive lead;
4. a gap; 5. a fixed bracket; 6. a flexible circuit board;
71. a first touch chip; 72. a second touch chip; 8. a reel;
x, a first direction; y, second direction; z, third direction.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus detailed descriptions thereof will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.
Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification for convenience only, such as in terms of the orientation of the examples described in the figures. It will be appreciated that if the device of the icon is flipped upside down, the recited "up" component will become the "down" component. When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.
The terms "a," "an," "the," "said" and "at least one" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. in addition to the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and do not limit the number of their objects.
The exemplary embodiments of the present disclosure provide a touch display device, which may include a flexible display panel 1, a cover plate 2, and a first touch layer group 3, as shown with reference to fig. 1 to 7; the flexible display panel 1 has a first display portion 11 and a second display portion 12, the first display portion 11 being disposed opposite to the second display portion 12; the cover plate 2 is arranged on one side of the second display part 12 away from the first display part 11; the first touch layer group 3 is disposed on one side of the cover plate 2 near the second display portion 12, and a gap 4 is disposed between the first touch layer group and the second display portion 12.
In the touch display device disclosed by the disclosure, the first touch layer group 3 is attached to the cover plate 2, and in a rolling state, the back surface of the touch display device can sense external touch actions through the first touch layer group 3 to realize a touch function; moreover, a gap 4 is arranged between the first touch control layer group 3 and the second display part 12, and the first touch control layer group 3 and the cover plate 2 cannot influence the expansion of the second display part 12; furthermore, the cover plate 2 can also protect the second display portion 12 from abrasion of the second display portion 12.
In this example embodiment, the touch display device may be a roll-to-roll touch display device. Referring to fig. 1 and 2, the touch display device may include a fixing bracket 5, and a portion of the flexible display panel 1 is fixed on the fixing bracket 5. A reel 8 is arranged in the fixed support 5, a part of the flexible display panel 1 is wound on the reel 8, the reel 8 can move and rotate to drive the flexible display panel 1 to be wound or unwound, one end of the flexible display panel 1 is also connected with a connecting structure 20, and the connecting structure 20 is connected to the fixed support 5. The other end of the flexible display panel 1 is provided with a flexible circuit board 6, and a second touch chip 72 is provided on the flexible circuit board 6. A cover plate 2 is also arranged on the fixed bracket 5.
It should be noted that, the specific structure of the touch display device is described in terms of the specific structure in the rolled state.
Accordingly, as shown with reference to fig. 1, when the flexible display panel 1 is in a rolled state, the flexible display panel 1 may include a first display portion 11, a second display portion 12, and a third display portion 13. The first display portion 11 and the second display portion 12 are disposed opposite to each other, and are each provided in a flat plate shape. The third display portion 13 is connected between the first display portion 11 and the second display portion 12, and the third display portion 13 is provided in a curved shape. The first display part 11 is a fixed part and is positioned on the front surface of the touch display device; the second display portion 12 and the third display portion 13 are scroll portions, the second display portion 12 is located on the back surface of the touch display device, and the third display portion 13 is located on the side surface of the touch display device. The display area of the second display section 12 is smaller than the display area of the first display section 11.
Referring to fig. 2, when the flexible display panel 1 is in the unfolded state, the second display portion 12 and the third display portion 13 are both unfolded and form a display plane coplanar with the first display portion 11, and are both located on the front surface of the touch display device.
With continued reference to fig. 1, a cover 2 is disposed on the back of the touch display device, that is, the cover 2 is disposed on a side of the second display portion 12 away from the first display portion 11; the cover plate 2 can protect the second display part 12 from abrasion of the second display part 12, but the cover plate 2 is fixedly arranged, namely, the cover plate 2 is always positioned on the back of the touch display device no matter the flexible display panel 1 is in a rolled state or an unfolded state; moreover, the cover plate 2 cannot be adhered to the second display portion 12, and the adhesion of the cover plate 2 to the second display portion 12 will prevent the flexible display panel 1 from being unfolded, and therefore, a gap 4 is formed between the cover plate 2 and the second display portion 12, and the gap 4 may be an air gap 4. Due to the air gap 4, the second display portion 12 cannot sense the external touch action in the winding state, so that a touch signal cannot be generated, and a touch function cannot be realized.
And referring to a copper column simulation data comparison table of the normal touch display device and the touch display device provided with the air gap. The diameter of the copper pillars is about 7mm, in the table: cm is the coupling capacitance generated between the touch driving electrode Tx and the touch sensing electrode Rx when no copper column is used for touch, and is also called as the mutual capacitance of Tx/Rx; cm' (not shown in the table) is the mutual capacitance between the touch driving electrode and the touch sensing electrode when the copper column is in touch; ΔCm is the value of Cm-Cm'; ΔCm/Cm is the mutual capacitance change rate; ΔCm/Cm is conventionally required to be greater than 5%. The capacitance of the simulation copper column and the touch control driving electrode is Cftx, and the capacitance of the simulation copper column and the touch control sensing electrode is Cfrx. An important parameter for evaluating the touch performance is that the larger the coupling capacitance (namely Cftx and Cfrx) between the simulation copper pillar and the electrode of the touch substrate is, the better. Cs-tx is the coupling capacitance of the touch drive electrode relative to the cover plate, and Cs-rx is the coupling capacitance of the touch sense electrode relative to the cover plate.
List one
Capacitance parameter Touch display device with air gap Normal touch display device
Cm(pF) 0.927 0.920
ΔCm(pF) 0.019 0.111
ΔCm/Cm 2.02％ 12.03％
Cftx(pF) 0.136 1.26
Cfrx(pF) 0.137 1.27
Cs-tx 9.94 10.07
Cs-rx 10.00 10.13
As can be seen from table one, the cover plate has a small influence on the touch electrode load, and can be ignored. Moreover, both Cftx and Cfrx of the touch display device provided with the air gap are significantly reduced, and Δcm/Cm is less than 5%, and thus, the touch function cannot be realized.
And referring to a simulation data comparison table of the two touch display devices with the air gap and the normal state through the touch chip.
Watch II
32×Cs-tx indicates that there are 32 touch drive electrodes, and 42×Cs-tx indicates that there are 42 touch drive electrodes; SNR represents the signal-to-noise ratio, which is generally required to be greater than 36, best represents the best signal-to-noise ratio, and Worst represents the Worst signal-to-noise ratio.
The second touch display device has a larger capacitance value and a larger estimated noise value, and therefore, the SNR of the second touch display device is lower than that of the first touch display device.
The following can be obtained from Table II: in the case where the air gap is provided, the TIC (touch chip) of the two touch display devices cannot sense the touch signal, and cannot realize the touch function.
In the present exemplary embodiment, a first touch layer group 3 is disposed on a side of the cover plate 2 close to the second display portion 12, the first touch layer group 3 is attached to the cover plate 2, and when in a rolled state, an external touch action can be sensed through the first touch layer group 3, so as to realize a touch function; moreover, the gap 4 is provided between the first touch layer group 3 and the second display portion 12, so that the first touch layer group 3 and the cover plate 2 do not affect the expansion of the second display portion 12, and can also play a role in protecting the second display portion 12.
The cover plate 2 may include a flat plate portion 21 and a curved surface portion 22, the flat plate portion 21 being disposed opposite to the second display portion 12; the curved surface portion 22 is connected to the flat plate portion 21 and is disposed opposite to a portion of the third display portion 13. The coverage area of the curved surface portion 22 may be designed as desired. In addition, in other example embodiments of the present disclosure, the curved surface portion 22 may not be provided, i.e., the cover plate 2 may include only the flat plate portion 21.
The first touch layer group 3 completely covers a side of the cover plate 2 near the second display portion 12, and thus, in the present exemplary embodiment, the first touch layer group 3 may include a first touch portion and a second touch portion. The first touch portion is disposed opposite to the flat plate portion 21, and is also disposed in a flat plate shape; the second touch portion is disposed opposite to the curved surface portion 22, and the second touch portion is also disposed in a curved shape.
However, since the second display portion 12 of the flexible display panel 1 needs to slide out from the cover plate 2, in the third direction Z, a set distance H is provided between a portion of the first touch layer group 3 closest to the flexible display panel 1 and a surface of the second display portion 12 closest to the cover plate 2, so that the second display portion needs to slide out from the cover plate 2 smoothly. The portion of the first touch layer group 3 closest to the flexible display panel 1 is a side edge of the first touch layer group 3 away from the fixing support 5. The third direction Z is perpendicular to the display surface of the first display unit 11.
Referring to fig. 3, the first touch layer group 3 may include a first touch conductor layer 3a, a first touch insulation layer 3b, a second touch conductor layer 3c, and a second touch insulation layer 3d that are sequentially stacked; specifically, the first touch conductor layer 3a is disposed on one side of the cover plate 2 close to the flexible display panel 1; the first touch insulating layer 3b is arranged on one side of the first touch conductor layer 3a away from the cover plate 2; the second touch conductor layer 3c is arranged on one side of the first touch insulation layer 3b away from the cover plate 2; the second touch insulating layer 3d is disposed on a side of the second touch conductor layer 3c away from the cover plate 2. The second touch insulating layer 3d protects the second touch conductor layer 3c and the entire first touch layer group 3.
Referring to fig. 4, the first touch conductor layer 3a may include a first touch electrode 311, a second touch electrode 321, and a second connection portion 322, where the first touch electrode 311, the second touch electrode 321, and the second connection portion 322 are disposed with the same material. The second touch conductor layer 3c may include a first connection portion 312. The first touch sensing lead 33 and the first touch driving lead 34 may be disposed on the first touch conductor layer 3a or may be disposed on the second touch conductor layer 3c. The first touch sensing lead 33 and the first touch driving lead 34 are connected to the first touch chip 71, and the first touch chip 71 performs signal transmission with the first touch layer group 3 through the first touch sensing lead 33 and the first touch driving lead 34.
Specifically, the first touch layer group 3 may be a mutual capacitance structure. Referring to fig. 4, the first touch layer group 3 may include a plurality of first touch units 31 and a plurality of second touch units 32. The first touch unit 31 has a linear shape extending along the second direction Y, and the plurality of first touch units 31 are sequentially arranged along the first direction X. The second touch unit 32 has a line shape extending along a first direction X, and the plurality of second touch units 32 are sequentially arranged along a second direction Y, and the first direction X crosses the second direction Y. Each of the first touch units 31 may include a plurality of first touch electrodes 311 and a plurality of first connection parts 312 sequentially arranged along the second direction Y, the plurality of first touch electrodes 311 being disposed at intervals, and adjacent first touch electrodes 311 being connected to each other through the first connection parts 312. Each of the second touch units 32 may include a plurality of second touch electrodes 321 and second connection portions 322 sequentially arranged along the first direction X, the plurality of second touch electrodes 321 being disposed at intervals, and adjacent second touch electrodes 321 being connected to each other through the second connection portions 322.
The first touch electrode 311 and the second touch electrode 321 form a capacitance. By detecting this change in capacitance, the location of the touch point can be determined.
In the present exemplary embodiment, the first touch electrode 311, the second touch electrode 321 and the second connection portion 322 are disposed on the same layer, and are all disposed on the first touch conductor layer 3a, and the second touch electrode 321 and the second connection portion 322 are in an integrated structure. Referring to fig. 3, the first connection portion 312 may be disposed on the second touch conductor layer 3c to form a bridge structure, and the first touch insulating layer 3b is disposed between the first connection portion 312 and the second connection portion 322, that is, a via hole is disposed on the first touch insulating layer 3b, and the first connection portion 312 is connected to the first touch electrode 311 through the via hole.
In other exemplary embodiments, the first touch electrode 311, the first connection portion 312 and the second touch electrode 321 are disposed on the same layer, and are all disposed on the first touch conductor layer 3a, and the first touch electrode 311 and the first connection portion 312 are in an integrated structure. The second connection portion 322 may be disposed on the second touch conductor layer 3c to form a bridging structure, and the first touch insulating layer 3b is also disposed between the first connection portion 312 and the second connection portion 322.
In the present exemplary embodiment, the first touch electrode 311 may be a driving electrode and the second touch electrode 321 may be a sensing electrode. In other example embodiments, the first touch electrode 311 may be a sensing electrode and the second touch electrode 321 may be a driving electrode.
The first touch units 31 and the second touch units 32 form M row driving electrodes and N column sensing electrodes, i.e. the M first touch units 31 and the N second touch units 32 are included, and M and N are positive integers greater than two.
In some example embodiments, the first touch electrode 311 and the second touch electrode 321 may have a rhombus shape, for example, may be a regular rhombus, or a rhombus that is horizontally long, or a rhombus that is vertically long. In some possible implementations, the first touch electrode 311 and the second touch electrode 321 may have any one or more of a triangle, a square, a trapezoid, a parallelogram, a pentagon, a hexagon, and other polygons, which are not limited herein.
In some example embodiments, the first touch electrode 311 and the second touch electrode 321 may be in the form of transparent conductive electrodes. Because the first touch control layer group 3 and the flexible display panel 1 can relatively move, the first touch control conductor layer and the second touch control conductor layer are made of transparent conductive materials, shielding of the flexible display panel 1 can be avoided, and therefore light emitting efficiency of the flexible display panel 1 is affected. In other example embodiments, the first and second touch electrodes 311 and 321 may be in the form of a metal mesh formed of a plurality of metal wires interleaved, the metal mesh including a plurality of mesh patterns, the mesh patterns being polygons formed of the plurality of metal wires. The first touch electrode 311 and the second touch electrode 321 of the metal mesh format have the advantages of small resistance, small thickness, high reaction speed and the like. The metal grid is arranged opposite to the sub-pixels, so that light emitted by the sub-pixels can be emitted through the grid, and the influence on the display effect is avoided.
The specific structure of the flexible display panel 1 will be described in detail below.
In the present exemplary embodiment, referring to fig. 5, the flexible display panel 1 may include a display back plate 14 and a second touch layer group 16. The second touch layer group 16 is disposed on the display surface of the display back plate 14, and a polarizer 17, an adhesive layer 18 and a cover layer 19 are sequentially stacked on a side of the second touch layer group 16 away from the display back plate 14.
The display back plate 14 may include a substrate 141, and the material of the substrate 141 may include an inorganic material, for example, glass, quartz, metal, or the like. The material of the base substrate 141 may further include an organic material, and for example, the organic material may be a resin-based material such as polyimide, polycarbonate, polyacrylate, polyetherimide, polyethersulfone, polyethylene terephthalate, and polyethylene naphthalate. The substrate 141 may be formed of multiple layers of materials, for example, the substrate 141 may include multiple base layers, and the base layer may be any of the materials described above. Of course, the substrate 141 may be a single layer, and may be any of the above materials.
A light shielding layer 142 may be further formed on one side of the substrate 141, and light incident into the active layer 144 from the substrate 141 may generate photo-generated carriers in the active layer 144, thereby greatly affecting the characteristics of the thin film transistor and ultimately affecting the display image quality of the display device; the light shielding layer 142 can shield light incident from the substrate 141, thereby avoiding influence on characteristics of the thin film transistor and avoiding influence on display quality of the display device.
A buffer layer 143 may be further formed on a side of the light shielding layer 142 away from the substrate 141, where the buffer layer 143 plays a role in blocking moisture and impurity ions in the substrate 141 (especially, organic materials), and plays a role in adding hydrogen ions to the active layer 144 formed later, and the material of the buffer layer 143 is an insulating material, so that the light shielding layer 142 and the active layer 144 can be insulated and isolated.
An active layer 144 is disposed at a side of the buffer layer 143 away from the substrate 141, the active layer 144 may include a channel portion and conductor portions disposed at both ends of the channel portion, a gate insulating layer 145 is disposed at a side of the active layer 144 away from the substrate 141, a gate electrode 146 is disposed at a side of the gate insulating layer 145, an interlayer dielectric layer 147 is disposed at a side of the gate electrode 146 away from the substrate 141, and a first via hole is disposed on the interlayer dielectric layer 147 and is connected to the conductor portions; a source 1481 and a drain 1482 are provided on the interlayer dielectric 147 on the side remote from the substrate 141, the source 1481 and the drain 1482 being connected to the two conductor portions by two first vias, respectively. A planarization layer 149 is provided on the side of the source 1481 and the drain 1482 remote from the substrate 141, and a second via is provided on the planarization layer 149, the second via being connected to the source 1481. The active layer 144, the gate electrode 146, the source electrode 1481, and the drain electrode 1482 form a thin film transistor.
It should be noted that, in the present disclosure, the thin film transistor is a top gate thin film transistor, and in other example embodiments of the present disclosure, the thin film transistor may also be a bottom gate type or a double gate type, and specific structures thereof are not described herein. In addition, in the case where a thin film transistor having opposite polarity is used, or in the case where the direction of current changes during circuit operation, the functions of the "source 1481" and the "drain 1482" may be exchanged with each other. Thus, in this specification, "source 1481" and "drain 1482" may be interchanged.
A light emitting device is disposed at a side of the planarization layer 149 remote from the substrate 141, and may include a first electrode 150, a pixel defining layer 151, a light emitting layer group 152, and a second electrode 153.
Specifically, a first electrode 150 is disposed on a side of the planarization layer 149 away from the substrate 141, the first electrode 150 is connected to a source 1481 of the driving backplate through a second via, and the first electrode 150 may be an anode.
A pixel defining layer 151 is disposed on a side of the first electrode 150 away from the substrate 141, a third via hole is disposed on the pixel defining layer 151, and a light emitting layer group 152 is disposed in the third via hole. A second electrode 153 is disposed on a side of the light emitting layer group 152 away from the substrate 141, the second electrode 153 may be a cathode, and the second electrode 153 is connected to the ground line VSS. The light emitting layer group 152 in one third via emits light to form one sub-pixel, and the display panel may include a plurality of sub-pixels.
The light emitting layer group 152 may include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer, which are sequentially stacked, the hole injection layer being in contact with the first electrode 150, and the electron injection layer being in contact with the second electrode 153. Of course, in other example embodiments of the present disclosure, the light emitting layer group 152 may include only a hole transport layer, a light emitting layer, and an electron transport layer, and the light emitting layer group 152 may also be other structures, and the specific structure thereof may be set as desired.
The second electrode 153 is provided with an encapsulation layer group 154 on a side far away from the substrate 141, the encapsulation layer group 154 may be provided as a plurality of layers, the encapsulation layer group 154 may include an organic layer and an inorganic layer, and specific materials and layers are not described herein.
The second touch layer group 16 is disposed on a side of the encapsulation layer group 154 away from the substrate 141. The second touch layer group 16 may include a third touch metal layer 16a, a third touch insulating layer 16b, a fourth touch metal layer 16c, and a fourth touch insulating layer 16d that are sequentially stacked; the third touch metal layer 16a may be disposed adjacent to the encapsulation layer group 154. The third touch metal layer 16a is disposed on one side of the display back plate 14; that is, the third touch metal layer 16a is disposed on a side of the encapsulation layer 154 away from the substrate 141. The third touch insulating layer 16b is disposed on a side of the third touch metal layer 16a away from the display back plate 14; the fourth touch metal layer 16c is disposed on a side of the third touch insulating layer 16b away from the display back plate 14; the fourth touch insulating layer 16d is disposed on a side of the fourth touch metal layer 16c away from the display back plate 14.
Referring to fig. 6, the third touch metal layer 16a may include a third touch electrode 1631, a fourth touch electrode 1641 and a fourth connection portion 1642, where the third touch electrode 1631, the fourth touch electrode 1641 and the fourth connection portion 1642 are disposed in the same material. The fourth touch metal layer 16c may include a third connection portion 1632. The second touch sensing lead 166, the second touch driving lead 165, the third touch sensing lead 168, and the third touch driving lead 167 may be disposed on the third touch metal layer 16a or may be disposed on the fourth touch metal layer 16c. The second touch sensing lead 166, the second touch driving lead 165, the third touch sensing lead 168 and the third touch driving lead 167 are all connected to the second touch chip 72, and the second touch chip 72 performs signal transmission with the second touch layer group 16 through the leads.
Specifically, the second touch layer set 16 may be a mutual capacitance structure. Referring to fig. 6, the second touch layer group 16 may include a plurality of third touch units 163 and a plurality of fourth touch units 164. The fourth touch unit 164 has a line shape extending along the first direction X, and the plurality of fourth touch units 164 are sequentially arranged along the second direction Y. The third touch unit 163 has a linear shape extending along the second direction Y, and the plurality of third touch units 163 are sequentially arranged along the first direction X, which intersects the second direction Y. Each third touch unit 163 may include a plurality of third touch electrodes 1631 and a plurality of third connection portions 1632 sequentially arranged along the second direction Y, the plurality of third touch electrodes 1631 are disposed at intervals, and adjacent third touch electrodes 1631 are connected to each other through the third connection portions 1632. Each of the fourth touch units 164 may include a plurality of fourth touch electrodes 1641 and fourth connection portions 1642 sequentially arranged along the first direction X, the plurality of fourth touch electrodes 1641 are disposed at intervals, and adjacent fourth touch electrodes 1641 are connected to each other through the fourth connection portions 1642.
The third touch electrode 1631 and the fourth touch electrode 1641 form a capacitance. By detecting this change in capacitance, the location of the touch point can be determined.
In the present exemplary embodiment, the third touch electrode 1631, the fourth touch electrode 1641, and the fourth connection portion 1642 are disposed on the same layer, and are all disposed on the third touch metal layer 16a, and the fourth touch electrode 1641 and the fourth connection portion 1642 are in an integrated structure. The third connection portion 1632 may be disposed on the fourth touch metal layer 16c to form a bridge structure, and a third touch insulation layer 16b is disposed between the third connection portion 1632 and the fourth connection portion 1642, that is, a via hole is disposed on the third touch insulation layer 16b, and the third connection portion 1632 is connected to the third touch electrode 1631 through the via hole.
In other exemplary embodiments, the third touch electrode 1631, the third connection portion 1632 and the fourth touch electrode 1641 are arranged on the same layer, and are all arranged on the third touch metal layer 16a, the third touch electrode 1631 and the third connection portion 1632 are in an integrated structure, the fourth connection portion 1642 may be arranged on the fourth touch metal layer 16c to form a bridging structure, and a third touch insulation layer 16b is also arranged between the third connection portion 1632 and the fourth connection portion 1642.
In the present exemplary embodiment, the third touch electrode 1631 may be a driving electrode and the fourth touch electrode 1641 may be a sensing electrode. In other example embodiments, the third touch electrode 1631 may be a sensing electrode and the fourth touch electrode 1641 may be a driving electrode.
The third touch units 163 and the fourth touch units 164 form M row driving electrodes and N column sensing electrodes, i.e. the sensing electrodes include M third touch units 163 and N fourth touch units 164, where M and N are positive integers greater than two.
In some example embodiments, the third touch electrode 1631 and the fourth touch electrode 1641 may have a rhombus shape, for example, may be a regular diamond, or a horizontally long diamond, or a vertically long diamond. In some possible implementations, the third touch electrode 1631 and the fourth touch electrode 1641 may have any one or more of a triangle, square, trapezoid, parallelogram, pentagon, hexagon, and other polygons, which are not limited herein.
In some example embodiments, the third touch electrode 1631 and the fourth touch electrode 1641 may be in the form of transparent conductive electrodes. In other example embodiments, the third and fourth touch electrodes 1631 and 1641 may be in the form of a metal mesh formed by interleaving a plurality of metal wires, the metal mesh including a plurality of mesh patterns, the mesh patterns being polygons formed of the plurality of metal wires. The third touch electrode 1631 and the fourth touch electrode 1641 of the metal mesh format have the advantages of small resistance, small thickness, high reaction speed and the like. The metal grid is arranged opposite to the sub-pixels, so that light emitted by the sub-pixels can be emitted through the grid, and the influence on the display effect is avoided.
The second group of touch control layers 16 may include a first portion 161 and a second portion 162.
Referring to fig. 6, the first portion 161 and the second portion 162 may be connected together, and the second touch driving lead 165 is connected to the first portion 161; the second touch sensing lead 166 is connected to the first portion 161; the third touch driving lead 167 is connected to the second portion 162; the third touch sensing lead 168 is connected to the second portion 162. In this case, the second touch chip controls the first portion 161 and the second portion 162 through the second touch driving lead 165, the second touch sensing lead 166, the third touch driving lead 167, and the third touch sensing lead 168, respectively.
Referring to fig. 7, a space 169 is provided between the first portion 161 and the second portion 162, that is, between the first portion 161 and the second portion 162; the spacer 169 is small, so long as no electrical connection is generated between the touch electrode of the first portion 161 and the touch electrode of the second portion 162, so that the touch function of the second touch layer group 16 is not affected in the unfolded state.
The third touch unit 163 located on the same line is divided into two parts, the third touch unit 163 located on the first part 161 is connected with the second touch sensing lead 166, and the third touch unit 163 located on the second part 162 is connected with the third touch sensing lead.
The fourth touch unit 164 located at the first portion 161 is connected to the second touch driving lead 165, and the fourth touch unit 164 located at the second portion 162 is connected to the third touch driving lead 167.
Referring to fig. 1, the front projection of the first touch layer group 3 on the flexible display panel 1 coincides with the second portion 162, so that in the rolled state, the touch function can be realized by the first touch layer group 3 instead of the second portion 162.
In other example embodiments of the present disclosure, an edge of the front projection of the first touch layer group 3 on the flexible display panel 1 near the first portion 161 coincides with an edge of the first portion 161 near the second portion 162. In case the first portion 161 and the second portion 162 are connected together, this is consistent with the front projection of the first layer set 3 on the flexible display panel 1 coinciding with the second portion 162. In the case where the first portion 161 and the second portion 162 are disposed at a distance from each other, the front projection of the first touch layer group 3 on the flexible display panel 1 coincides with the second portion 162 and the spacer 169. Also, in the rolled state, the touch function may be realized by the first touch layer group 3 instead of the second portion 162.
It should be noted that, when the first touch layer group 3 is orthographically projected on the flexible display panel 1, the light forming orthographic projection is perpendicular to the first touch layer group 3, that is, when the curved surface portion 22 forms orthographic projection, the light forming orthographic projection is perpendicular to the curved surface portion 22.
The first portion 161 is located at the first display portion 11 and at least part of the third display portion 13; the second portion 162 is located at least in the second display portion 12. When the first touch layer group 3 is disposed opposite to all of the second display portions 12 and part of the third display portions 13, the first portion 161 is located at the first display portion 11 and part of the third display portions 13, and the second portion 162 is located at the second display portion 12 and part of the third display portions 13. In other example embodiments of the present disclosure, in a case where the first touch layer group 3 is disposed opposite to only the second display portion 12, the first portion 161 is located at the first display portion 11 and the third display portion 13, and the second portion 162 is located at the second display portion 12.
The specific type of the display device is not particularly limited, and the type of the display device commonly used in the art may be, for example, a mobile device such as a mobile phone, a wearable device such as a watch, a VR device, etc., and those skilled in the art may select the display device accordingly according to the specific application of the display device, which is not described herein again.
It should be noted that, the display device may further include other necessary components and compositions, for example, a display, specifically, a housing, a circuit board, a power cord, etc., which can be correspondingly supplemented by those skilled in the art according to specific usage requirements of the display device, and will not be described herein.
Based on the same inventive concept, the exemplary embodiments of the present disclosure provide a control method of a touch display device, for controlling the touch display device described in any one of the above, referring to fig. 8, the control method may include the following steps:
step S10, receiving a roll state of the touch display device.
In step S20, if the rolled state of the touch display device is rolling, the first touch layer group 3 is controlled to operate.
The control method of the touch display device is described in detail below.
Step S10, receiving a roll state of the touch display device.
In this example embodiment, the rolled state of the touch display device may include two, rolling and unrolling, respectively. Referring to fig. 1, when the touch display device is rolled up, the first display portion 11 is located on the front side of the touch display device, the third display portion 13 is located on the side of the touch display device, and the second display portion 12 is located on the back side of the touch display device, that is, the second display portion 12 is covered by the cover 2. Referring to fig. 2, when the rolled state of the touch display device is unfolded, the first display portion 11, the second display portion 12, and the third display portion 13 are all located on the front surface of the touch display device.
In step S20, if the rolled state of the touch display device is rolling, the first touch layer group 3 is controlled to operate.
In this example embodiment, when the rolled state of the touch display device is rolling, the second portion 162 of the second touch layer group 16 cannot realize the touch function, and controls the first touch layer group 3 to work, so that the touch function can be realized by sensing an external touch action by the first touch layer group 3.
Further, while controlling the first touch layer group 3 to operate, the second portion 162 is controlled to stop operating, although the touch signal of the second portion 162 is weaker, there is a certain influence, and controlling the second portion 162 to stop operating can avoid the second portion 162 from influencing the touch function of the first touch layer group 3; and the first part 161 is controlled to work, and the first part 161 and the first touch control layer group 3 work can realize full coverage of the touch control display device, so that the touch control function is realized at all positions of the touch control display device.
Further, controlling the second portion 162 to stop may include: the touch sensing signal of the second portion 162 is shielded, that is, the second touch chip 72 does not receive the touch sensing signal of the second portion 162, and more specifically, the second touch chip 72 does not receive the touch sensing signal transmitted by the third touch sensing lead 168. Alternatively, the touch function of the second portion 162 may be controlled to be turned off, for example, the second touch chip 72 may not input a touch driving signal to the second portion 162, and more specifically, the second touch chip 72 may not input a touch driving signal to the third touch driving lead 167.
If the sliding roll state of the touch display device is in an unfolding state, the cover plate 2 does not cover the display surface of the touch display device, and the first touch layer group 3 does not cover the display surface of the touch display device; therefore, the first touch layer group 3 is controlled to stop working. The second touch layer group 16 works to realize full coverage of the touch display device, so that the touch function can be realized everywhere of the touch display device by controlling the second touch layer group 16 to work.
It should be noted that, although the steps of the control method of the touch display device in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in the specific order or that all of the illustrated steps must be performed to achieve the desired results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step to perform, and/or one step decomposed into multiple steps to perform, etc.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (15)

1. A touch display device, comprising:
the flexible display panel comprises a first display part and a second display part, wherein the first display part and the second display part are arranged opposite;
the cover plate is arranged on one side of the second display part, which is away from the first display part;
the first touch control layer group is arranged on one side, close to the second display part, of the cover plate, and a gap is formed between the first touch control layer group and the second display part.
2. The touch display device according to claim 1, wherein the flexible display panel further has a third display portion connected between the first display portion and the second display portion, the third display portion being curved, the first display portion being a fixed portion, the second display portion and the third display portion being a rolled portion.
3. The touch display device according to claim 2, wherein the first touch layer group completely covers a side surface of the cover plate near the second display portion, and the cover plate includes:
a flat plate portion disposed opposite to the second display portion;
and the curved surface part is connected with the flat plate part and is arranged opposite to part of the third display part.
4. The touch display device according to claim 3, wherein a set distance is provided between a portion of the first touch layer group closest to the flexible display panel and a surface of the second display portion closest to the cover plate in a third direction, and the third direction is perpendicular to the display surface of the first display portion.
5. The touch display device of claim 2, wherein the flexible display panel comprises:
a display back plate;
the second touch control layer group is arranged on one side of the display backboard and is positioned on the first display part, the second display part and the third display part.
6. The touch display device of claim 5, wherein the second group of touch layers comprises a first portion and a second portion, the first portion being located in the first display portion and at least a portion of the third display portion, the second portion being located in at least the second display portion.
7. The touch display device of claim 6, wherein an orthographic projection of the first layer of touch control layer on the flexible display panel coincides with the second portion, or wherein an edge of the orthographic projection of the first layer of touch control layer on the flexible display panel near the first portion coincides with an edge of the first portion near the second portion.
8. The touch display device of claim 6, wherein the first portion and the second portion are disposed at a spacing therebetween.
9. The touch display device of claim 6, wherein the second group of touch layers further comprises:
the second touch control driving lead is connected to the first part;
the second touch sensing lead is connected to the first part;
the third touch control driving lead is connected to the second part;
and the third touch sensing lead is connected with the second part.
10. The touch display device of claim 6, wherein the first group of touch layers comprises:
the first touch conductor layer is arranged on one side of the cover plate, which is close to the flexible display panel, and is made of transparent conductive materials;
the first touch insulating layer is arranged on one side of the first touch conductor layer, which is far away from the cover plate;
the second touch conductor layer is arranged on one side of the first touch insulation layer, which is far away from the cover plate, and is made of transparent conductive materials;
the second touch insulating layer is arranged on one side, far away from the cover plate, of the second touch conductor layer.
11. The touch display device of claim 6, wherein the second group of touch layers comprises:
The third touch metal layer is arranged on one side of the display backboard;
the third touch insulating layer is arranged on one side, far away from the display backboard, of the third touch metal layer;
the fourth touch metal layer is arranged on one side, far away from the display backboard, of the third touch insulation layer;
and the fourth touch insulating layer is arranged on one side of the fourth touch metal layer, which is far away from the display backboard.
12. A control method of a touch display device for controlling the touch display device according to any one of claims 1 to 11, characterized by comprising:
receiving a roll state of the touch display device;
and if the sliding roll state of the touch display device is rolling, controlling the first touch layer group to work.
13. The control method of a touch display device according to claim 12, wherein the touch display device is the touch display device according to any one of claims 6 to 11, the control method further comprising:
and controlling the second part to stop working and controlling the first part to work while controlling the first touch control layer group to work.
14. The method for controlling a touch display device according to claim 13, wherein,
Said controlling said second portion to cease operation includes:
shielding the touch sensing signal of the second part, or controlling to close the touch function of the second part.
15. The method for controlling a touch display device according to claim 12, wherein,
and if the sliding roll state of the touch display device is unfolding, controlling the second touch layer group to work, and controlling the first touch layer group to stop working.
CN202210271858.6A 2022-03-18 2022-03-18 Touch display device and control method thereof Pending CN116804900A (en)

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CN117690344A (en) * 2023-10-31 2024-03-12 惠科股份有限公司 Stretchable display module and display device

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CN110034168B (en) * 2019-03-29 2021-07-30 上海天马微电子有限公司 Display panel and display device
CN212873896U (en) * 2020-08-12 2021-04-02 京东方科技集团股份有限公司 Display device
CN113093943B (en) * 2021-04-14 2024-03-15 京东方科技集团股份有限公司 Display device
CN215494959U (en) * 2021-04-30 2022-01-11 京东方科技集团股份有限公司 Display device and display apparatus
CN217426092U (en) * 2022-03-18 2022-09-13 京东方科技集团股份有限公司 Touch control display device

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Publication number Priority date Publication date Assignee Title
CN117690344A (en) * 2023-10-31 2024-03-12 惠科股份有限公司 Stretchable display module and display device

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